exxos's Atari, Amiga & retro forum

I loved the 3000 but never owned one, what are the boards on top? i think an A1200 board.

Any updated on TF530 Firmware.

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Shaf

Which Terriblefire with 68030 works with Atari ST? And does it compatible with STE?

Cyprian wrote: 25 Dec 2018 13:15 Which Terriblefire with 68030 works with Atari ST? And does it compatible with STE?

They all have a floppy drive issue right now. I'm working on it. No idea about the STE because its got a PLCC 68K

terriblefire wrote: 26 Dec 2018 09:12

Cyprian wrote: 25 Dec 2018 13:15 Which Terriblefire with 68030 works with Atari ST? And does it compatible with STE?

They all have a floppy drive issue right now. I'm working on it. No idea about the STE because its got a PLCC 68K

do you mean issue with floppy DMA channel?
what about HDD and the BLiTTER? The first one shares the same DMA channel with the floppy drive and the BLiTTER uses (their own) DMA channel.

Cyprian wrote: 26 Dec 2018 12:33

terriblefire wrote: 26 Dec 2018 09:12

They all have a floppy drive issue right now. I'm working on it. No idea about the STE because its got a PLCC 68K

do you mean issue with floppy DMA channel?
what about HDD and the BLiTTER? The first one shares the same DMA channel with the floppy drive and the BLiTTER uses (their own) DMA channel.

I've no idea. I dont own an ST with a blitter. I also dont own an HDD unit. I imagine if i get the bus arb correct it will work fine. I have the same code working perfectly with the CD32 CD drive. The ST GLUE chip seems to be very picky.

terriblefire wrote: 26 Dec 2018 22:00 I've no idea. I dont own an ST with a blitter. I also dont own an HDD unit. I imagine if i get the bus arb correct it will work fine. I have the same code working perfectly with the CD32 CD drive. The ST GLUE chip seems to be very picky.

Yep, ST has implemented full 68000 bus protocol, and any accelerator has to follow it also.

Cyprian wrote: 27 Dec 2018 16:52

terriblefire wrote: 26 Dec 2018 22:00 I've no idea. I dont own an ST with a blitter. I also dont own an HDD unit. I imagine if i get the bus arb correct it will work fine. I have the same code working perfectly with the CD32 CD drive. The ST GLUE chip seems to be very picky.

Yep, ST has implemented full 68000 bus protocol, and any accelerator has to follow it also.

Well yes and No. it has to obey the specs but glue expects a little more than is specified sometimes. Which is annoying.... like aborting a register write if the bus cycle is 20ns too short.. things like that are hard to fix with programmable logic. Well hard to fix in a clock domain crossing environment.

It’s annoying because Amiga 500 doesn’t use the bus arb at all. But this is why I test on Atari.

terriblefire wrote: 27 Dec 2018 17:45 Well yes and No. it has to obey the specs but glue expects a little more than is specified sometimes. Which is annoying.... like aborting a register write if the bus cycle is 20ns too short.. things like that are hard to fix with programmable logic. Well hard to fix in a clock domain crossing environment.

It’s annoying because Amiga 500 doesn’t use the bus arb at all. But this is why I test on Atari.

good to know.

I would suggest to talk with Rodolphe / rpineau (he's made 68020 accelerator for ST) or check how it is managed in Pak 68/3

Cyprian wrote: 27 Dec 2018 19:43 I would suggest to talk with Rodolphe / rpineau (he's made 68020 accelerator for ST) or check how it is managed in Pak 68/3

The mechanism thats used in other accelerators will not work in the TF53x because of how its designed. Not possible to retrofit it at this time. I understand the problem space.. its just it needs a more creative solution in the TF53x series due to a design decision.

I keep my finger crossed.
I'd like to equip my STE (I saw somewhere an adaptor) with the fastest TF with 030 and with as much as possible FastRam